Portable Breathing Trainer for Daily Fitness Training, Lung Trainer Adjustable to Different Fitness Needs & Easy to Clean.

tested, felt good, hoping it will work, unboxing rather underwhelming, choose this one specificall for the ease of using lanyard, didn't get it in the pack, also no branding anwhere on the box, so not the complete product what i ordered, litte disappointed, hope usage will change my overall experience

I wanted to hate this. It’s so silly and I look so silly using it. But my runs are improved after just a FEW days of using this. This is so easy to use and so effective. It fits in my mouth well and is comfortable to use. Really recommend and cheaper than a lot of competitors.

Why did you pick this product vs others?: It’s exactly as it looks and useful for what it’s supposed to do, it’s a one size fits all , not at all like a mouth guard that can be fitted.

A bit getting used to but helps

Kinda hard to breathe with it on I believe that's the point. I will recommend this product

My son liked it because he can play